Hi, I guess this series got probably lost during the merge window. Hence, I resend the patches. This is v2, hopefully without any build issues. The changes are the same as before, just the warning reported by kbuild test robot about unused variables have been fixed. And, I added one more patch with some cleanup/refactoring. I recently found my system locking up under some conditions. I dug through the code a bit and the result is this collections of various changes. Some of it may not be required and has just been created out of half-baked theories and re-reading the documentation. The actual failing scenarios seem to be: - RX IRQ conditions are handled while the receiver is disabled, leaving the driver in an infinite loop - console_put_char seems to be interrupted by uart_shutdown disabling the transmitter while/just before printing I.e. overall I tried to serialize all operations using the port lock to avoid such interaction. Thanks, Sören Sören Brinkmann (10): tty: xuartps: Beautify read-modify writes tty: xuartps: Use spinlock to serialize HW access tty: xuartps: Always enable transmitter in start_tx tty: xuartps: Clear interrupt status register in shutdown tty: xuartps: Improve startup function tty: xuartps: Keep lock for whole ISR tty: xuartps: Acquire port lock for shutdown tty: xuartps: Move RX path into helper function tty: xuartps: Only handle RX IRQs when RX is enabled tty: xuartps: Cleanup: Reformat if-else drivers/tty/serial/xilinx_uartps.c | 247 ++++++++++++++++++++----------------- 1 file changed, 136 insertions(+), 111 deletions(-) -- 2.6.3.3.g9bb996a -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
